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A. MOKAIG.

MIXING MACHINE.

APPLICATION FILED 001215, 1912.

1,105,812. Patented Aug. 4, 1914,

3 SHEETS-SHEET l.

A. MOKAIG.

MIXING MACHINEx APPLIOATmn FILED 001.15, 1912.

1,105,812. Patented Aug. 4, 1914.

3 SHEETS-SHEET 2.

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MIXING MACHINE. APPLICATION FILED 0GT.15,1912.

Patented Aug. 4, 1914.

3 SHEETS-SHEET 3.

I NvfLNTn R WiTNEe WSW EY ATTUmND/ T aZZ whom it Amay concm i. same may also be u estaras 'Parana on .ARCHIE HGKAIG, GF BUFFALO, NEW YORK.

Be it known that I, ARCHIE MoKAiG, a citizen of the United States, residing at- Buffalo. New York, have'invented new and useful Improvements in Mixing-Machines, of which the following is a specification.

This invention relates to a mixing machine which is more particularly designed for mixin different ingredients or materials for fertilizing urposes although the,

A Sed) to advantage for mixin other materials.

.y Vhen mixing materials for fertilizing purposes the agitation of this material prouces considerable dust particularly when the material is dry and if this dust is permitted to reach the atmosphere it is not only injurious and disagreeable to the attendants but it also results in the loss of fertilizing material and interferes with the free working of the machine because the exten rior thereof becomes coated with dust and therefcre requires more power to operate the same.v

It is the object of this invention to provide a mixing machine which is practically dust proof, which can be o erated with less ower than machines of this character as iieretofore constructed, and which can be operated either for mixing the material in batches or to effect a continuous mixing of the material by feeding the material continuously into the inlet of the machine and discharging the same continuously through the outlet thereof.

My invention has the further object to so construct the machine that samples of the material may be taken from the machine whenever1 desired for thev purpose of determining the character of the mixture.

In the accompanying drawings consisting of 3 sheets: .Figure l is a vertical longitudinal section of a mixing machine embodying my invention. Fig. 2 is a vertical transverse section thereof taken in line Fig. l, looking rearwardly. Fig. 3 is a fraginentarj.Y vertical section taken in lin-e' 3 3, Fig. l. looking forwardly. Fig. i is. a fragmentary horizontal section taken in line MIXING-MACHINE.

Specication of Letters Patent. Application led October 15, 1912.

in the county of Erie and State of*V is rotatable about a 'horizontal axis.

.longitudinal axis the this purpose which are shown in the drawrateateaaag. 4, wie.; semina. nasse.

4th- 4, Fig. l. Fig. uis a .fragmentary section, on an enlarged` scale, showing the joint between the mixing drum and the delivery spout. F ig. 6 is a similar view showin the goint between the supply Vhopper andg the mixing drum.

v Similar'characters ofireference indicate corresponding parts throughout the several views.

l represents the `main frame of the machine which may be of any suitable construc- L tion to support the various worlrinof arts of the machine. Above the front endbo this frame is mounted the .mixing drum which is preferably constructed of sheet metal 1alnd is drum preferably comprises a cylindrical body 2 which is` arranged horizontally, a rear fiat head 3 arranged at the rear end of the body and provided with a central inlet opening and a forwardly tapering front head 4 arranged at the front end of the body 'and -having a central outlet openin'. This drum may be mounted in any suitable manner for rotation ab'out its orizontal preferred means for ings comprising two annular tires, bands or rings 5 secured to the periphery of the drum at the front and rear ends thereof, and two pairs of supporting or guide wheels 6 journaled in suitable bearings on the frame and receiving the tires of the drum. In the preferred form of this rolling support for the drum each of the tires thereof is engaged by two of the supporting wheels the same being arranged on opposite sides of the vertical center thereof, asy shown in Fig. 2.

yThe several supporting wheels are journaled independently of each other so that any variation in the diameter thereof will not cause any dragging of the drum on one or the other of these supporting wheels.

Although various means may be employed for rotating the drum about its axis the means for thislpurpose shown in the drawings are suitable and comprise a horizontal driving shaft T journaled lengthwise adjacent to one side of the drum in bearings arranged on the main frame, a .driving pinion recting j zii 8 arranged on the central part,of this shaft and engaging lwith a` gear wheel or rim 9 secured to the central part ofthe periphery of the drum, and a driving pulley 10 mounted onthe driying shaft andr adapted to 17ev ceive 'agdri 'ng belt whereby the same is operati`v`ely 'connected with a prime mover.

11 represents a feed hopper which is adapted to receive through its open upper end the material which is to be mixed and which is provided at its lower end with a feed-spout-12 v.which projectsv into the inlet pening'of the drum forl the purpose of dithe.material from the hopper into the rear end of the drum. The passage of the'mateial from the hopper into the drum maybe'controll'ed any suitable means so asI ytoy deliver the material into 4the Vdrum eithercontiniiously or in batches. The means showti'in the'drawings for controlling the discharge vof material from the hopper into the drum are suitable and comprise a i vertically movablefslide or gate 13 which is of'l thev hopper4 thatI Amoved'across tll'efe'edhopper and close the on the front wall the same may be Guided in suitable ways outlet of the same orto be withdrawn from said spout, and a 'hand lever 14 pivoted on thefeed hoppernd connected by means of a'link 15 with'the" slide, as shown in Figs. landZu' i l `1 Inl order to' produce a dust proof joint b etw'een ythefeedspout of the hopper and 'the rear end of the drum a' packingis irovidedbetween4 these' 'parts 'which is est shown in Figs. 1, 3 and 6 and c onstructed asl followszSrecur'edI to the rear head of the drum is a supporting ring which comprises van annular laterally projecting or radial ange 16 securedv to the'rear side of the rear drum :head and aniinwardly projectingor axial annular flange'17' which is arranged within the Opening of the rear' drumhead and surrounds ltheperiphery* lof the feed spout 'or conduit which is of circular form. On its'o'uter sidethis' supporting ring is provided at its inner 'corner lwith an an` nular rabbet'18 the 'outer wall 19 .of which is preferably made offforwardly tapering* which will presently ap' form for purposes pear. Secured to the' outer face of the lateral fiange of the'supporting ring is a retaining ring 2O which has its inner edge projecting inwardly over the outer part of the rabbet 18 so as to form with the latter an annular undercut channel or packing groove. 21 represents a packing ring which surrounds the periphery of the feed spout within the rabbet of the supporting ring and arranged with its front radial face close to the adjacent radial face of the rabbet while its outer edge projects into the annular groove formed between the supporting and retaining rings. The outer edge of outer wall of the rabbet in the through the rotary yjoint supporting ring.

the packing ring 20 preferably tapers forwardly or inwardly at the same angle as the supporting ring. Bythus beveling the outer wall of therabbet in the sup orting ring' and the outerf face of'lthef pac ing ring a compact construction is produced which permits' 0f utilizing the metal to the best advantage and also permits of a limited amount of lateral movement of'the supporting ring and feed to each other as the parts ing a circuitous passage from the interior of the drum to the external atmosphere spout and drum which tends to check the escape of any dust .from the drum to the atmosphere.

Means are provided for adjusting the packing ring on the the bottom of the rabbet on the supporting rino' so as to reduce to a minimum the possibility of dust passing between the periphery of the feed spout and the bore of the These means are so constructed that the packing ring may-be adjusted to the desired position relatively to the supporting'ring and then held in this position so. as to avoid cramping of these parts' and avoiding undue friction. preferred means for this purpose consists of a plurality of thrust Yscrews 22 which are =arranged" in threaded openings at different 'points in an annular adjusting fiange 23 y arranged on the periphery of the feed spout adjacent tothe outer side of the packing ring and which engage with the outer side of the packing ring, and a plurality of draw screws 51 engaging with threaded openings in the packing ring and passing through unthreaded openings in the adjusting flange of the feed spout, as shown in Figs. 1 and 6. Upon tightening the thrust screws until the packing ring has been shifted inwardly to the desired position relatively to the supporting ring and then tightening the drawv screws the packing ring will be held rigidly in its adjusted position. nuts 24 may be applied to 'the thrust screws The between the feed feed spout relatively to If desired, jam

for holding the same in place which jam flange, as shown in to engage with the outerv ceives` the outer edge of the packing ring for preventingthe escape of dust through the joint of this packing.

The supporting ring and the Vretaining ring are preferably secured to the rear head of' the drum by a single set ofbolts 25, as shown in Figs. l, 3 and 6. In assembling the partsthe packing ring is slippedjover the feed spout before the latter is inserted within the bore of the support-ing ring and then the retaining ring is secured to the supporting ring so as to overlap the acking ring. In order to permit of app ying the retaining ring to the supporting ring when the meeting edges of the retaining ring and adjustinrr ring are beveled inwardly, as indicated in li'ig. t5, the retaining ring is split diametrically into two parts, n as shown in Fig. 3, thereby permitting of readily attaching this ring to or removing the saaie from the supporting ring when assembling or dismembering the machine.

As the material enters the rear end of the drum the same is lifted and dropped therein so that it is thoroughly mixed and at the same time this material is gradually propelled from the rear end of the drum toward the front end thereof preparatory to being discharged therefrom at the front end of the drum. Although various means may be employed for thus causing the rotation of the drum to mix the material and propel the same lengthwise therein those shown in the drawings are suitable and comprise a plurality of angle lifting bars 26 secured lspirallj` to the inner side of the drum and a plurality of scoops, flights or wings 27 secured at different points to the angle bars, these angle irons and flights being so constructed that they lift the material to be mixed on the rising side of the drum and then let the same drop through the center thereof, and also produce a slow propulsion of the material to be mixed from the rear or inlet end of the drum toward the front r outlet end thereof.

2S represents a delivery spout or conduit through which the material after it is mixed in the drum may be discharged into a suitable receptacle or other place provided for the purpose. This spout is preferably curved vertically and opens at its inlet or rear end horizontally rearward into the outlet opening of the drum while its front or outlet end opens downwardly. This spout may be supported upon the adjacent stationary part ofthemain frame by any suitable means, for instance, by means of` a bracket Q9, as shown in Fig. 1.

A dust proof jointl is-,produced between the stationary discharge spout andthe front headyof the drum by a packin` which is constructed substantially like die. packing between the feed spout and the rear end of the drum. 'This packing between'the front end of the drum and the delivery spout is best shown in Figs. l, 2 and 5 and comprises an annular supporting ring having a horizrntal or axial flange 30 projecting rearwardly into the opening-0f the front drum head andv engaging its boreV with the cylindrical periphery of the deli /ery spout and a radially rutwardly projecting. flange 3l secured to the outer side of the rear drum head and provided with an annular rablret 32 at the outer corner of its bore, a diametrically split retaining ring 33 secured to the outer face of the lateral flange of the supporting ring and having its inner edge projecting over the rabbet of the supporting ring so as to form an annular undercut trap channel or groove cetween these parts, an annular row of bolts 34 connecting the retaining and supporting,T rings with the rear drum head. a packing ring surrounding the inlet of the discharge spout and bearing with its inner flat side against the bfttom of the rabbet and projecting with its outer edge into the trap groove fcrmed thereby, an annular adjusting flange 3G arranged on the outer side of the delivery spout transversely in line with the retaining ring 38, a plurality of thrust screws 37 arranged in threaded openings formed in the adjusting (lange and bearing against the outer side of the packing ring, and a plurality of draw screws 38 arranged in unthreaded openings in the adjusting flange and working in threaded openings in the packing ring. The outer edge 54: of the packing ring 85 and the outer wall 55 of the rabbct 32 are tapered inwardly, and the opposing outer edge 5G of the adjusting flange 3G and the inner edge 57 of the retaining ring 33 are also tapered inwardly for the purpose of obtaining the maximum metal in these parts within a given amount of space while permitting a certain amount of lateral movement of the packing ring within the rabbet when this is required during wearing of the ccperating surfaces of the supporting ring and the delivery spout and also forming the cireuitous path in the joint between a delivery spout and the drum which operates to check or prevent the escape of any dust from the interior of the drum through this joint to the atmosphere.

39 represents a fixed chute which is mounted on the discharge spout and which projects in an inclined position from the central part of the saine at the inner or inlet end thereof rearwardly and upwardly into the front part of the mixing drum so as to come within the range of travel of the rear endsl of the lifting and propelling angle irons andflights of the mixing drum.

40 represents a shutter flange projecting I spout and vertical.

4l represents vertically which extends transverselygacross theentire width of the delivery s out andis mounted between its up r an transversely in shearing in the lower part" of the delivery ,spout and provided onthe exterior of this spout with an operating handle 43. This door is so constructed and'.

arranged that when it isturned in one position it inclines from itsupperfront enddownwardly toward its lowerrear end 'and engages at its front. endgwith-the front side:V

of the shutter'flange 40- whilefits--lowen end engages with the lower side ofthe discharge spout in rear: ,of"theYoperating-gshaft@l as shown by falllinesfin' Fi .z Xgwhileupon turning this'door in the `ot er--direction the-v saine will incline from its rear end downwardly toward its front end .and its rearendwill engage'with the underside of the dis-' charge chute and.' its front end will engage with the delivery spoutin-.front- Vof `the operating shaft, as shown by dotted lines -lin' Fig-1. While the door .41 occupies the po.`

sition indicatedby full lines in'Fg. l, the

discharge spout is closed andcorrimunica-4 tion betweenthe interior ofthe drumv and the exterioris shut oli; In this position of.

the door the front-ends of the-lifting and propelling angle,l irons'and iightso the drum elevate the-flnaterials which arebeing When it is desired t'o takearsample of the mixture from the machine, or to empty the drum of its contents, or to operate the fma chine as a continuous machine the'dooris swung into the position shown by dott'ed lines in Fig. 1,` whereby the material deposited upon the discharge chute by the angle irons and flights of the drum is directed by the door to the outlet at the lower end of the discharge spout inasmuch as the door in this position practically forms a continuation of the discharge chute and closes the space between this chute and the lower part of the `discharge spout so that the material delivered upon the chute cannot again return to the drum but is compelled to leave through the discharge spout.

It will thus be noted that this nachine is same is also capable of use for mixing mapreerably at an angle tothe lower edges -on a. horizontal sha t 42 which is Journaled manner when it is either inbatches or continuously.

Furthermore, the same is simple and durable iny construction; and is also etrlcient in operation and capable of being run with a low drum'rotatable about a horizontal axis inner end arranged within the drum and its position its outerpartcloses the spout and outer end of the chuteand the spout while up'on turning the door into an outwardly inclined position its inner part closes the 'space between the chute and. spout and its outer part opens the spout and the inner and outer parts of the.door form a continuation of said chute.

' '2. A mixing machine comprising a hollow drum rotatable about ahorizontal axis and provided with front and rear openings7 a discharge spout having its inner end communicatingv with said frrnt opening, a stazoA and' provided with front and rear openings, --adischargespout-havingits inner end com .niunieatingwith;saidfrontopening, a sta A A-tionary outwardly inclined chute having its .outer lendharrangedcentrally. relatively to. V: -the innervend of' said discharge spout,- and a door' arranged'in said spout and pivoted betweenits ends for turning the same about a horizontal transverse axis so that upon, -fturnin'g the door into an inwardly inclined. y

its inner vpart opens-a space between the tionary outwardly inclined chum having its .l

inner endarranged within the drum and its outer end arranged centrally relatively l tween `its ends for turning the same about a;-VA i horizontal transverse axis sothat upon turning the door into an inwardly inclined position its outer part closes the spout andits inner p-art opens a space between the outer end of the chute and the spout while upon turning the door into an outwardly inclined position its inner part closes the space between the. chute and spout and its outer part opens the spout and the inner and outer parts of the door form a continuation of said chute and a flange depending from the upper side of the discharge spout and adapted to be engaged by the outer edge oi the door in the closed position of the same.

3. A mixing machine comprising a hollow drum rotatable about a horizontal axis and providedv with front and rear openings, a discharge spout having its inner end communicating with said front openings. a stationary outwardly inclined chute mounted on the spout and having its inner end arranged Within the drum and its outer end arranged centrally relatively to the inner end of said discharge spout. and a door arranged in said spout and pivoted between chute and spout and its outer part ogens its ends; for turningr the saniealiout a liorispout and the inner and outer parts on Zontnl transverse axis, so that. upon turning' i door form :i continuation of seid Clint@ the door into :in inwzirdlv inclined position 7Witness my hand this 2nd day of @atene-r, its outer part closes tlie spout and its inner I 1912.

part opens n space between the outer end of l RCHE Melfi/HG.

the elinte and the spoutv7 while upon turning,r lVitnesses: the door into an outwardly inclined position THEO. L. POPP, its inner part closes the space between the ANNA HEIGIS. 

